import java.io.IOException;
import java.io.Serializable;

//ch01
public final class Person extends BaseClass implements Serializable {
    //成员变量
    private String name;
    static final  int age=30;
    protected String address;
    public String message;

    //成员方法
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    static final int getAge(){return age;}
    protected String getAddress(){return address;}
    private void silentMethod() throws IOException,NullPointerException{
        System.out.println("这是悄悄话");
    }

    public Person() {
    }

    private Person(String name) {
        this.name = name;
    }

    protected Person(String name, String address, String message) {
        this.name = name;
        this.address = address;
        this.message = message;
    }
    @Override
    public String toString(){
        return "{name:"+name+",age:"+age+",address:"+address+",message:"+message+"}";
    }
}
